JP2013105607A - Pressure welding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-harness pressure welding device that can pressure-weld and cut a short electric wire group and does not increase in cycle time, and its pressure welding method.SOLUTION: A pressure welding method for a multi-harness body that has a parent connector pressure-welded to one end of a plurality of electric wires and a plurality of child connectors pressure-welded to the other end for each of electric wire groups differing in electric wire length, includes: a child-side pressure welding step of collectively pressure-welding the electric wires while holding the child connectors by a child-side connector guide part 30; an opening step of opening the child connectors from the child-side connector guide part; an electric wire length measuring step of measuring a length of each electric wire from an electric wire group on one width-directional side of electric wires to an electric wire group on the other side while the electric wire groups pressure-welded to the child connectors are parallel; and a parent-side pressure welding step of holding the parent connector by a parent-side connector guide part 70 and pressure-welding from the electric wire group parallel in a width direction to the electric wire group on the other side, and cutting them.

Description

  The present invention relates to a harness pressure welding apparatus, and more particularly, to a multi-harness pressure welding apparatus capable of pressure welding a short electric wire.

There is a harness in which connectors are connected to both ends of a plurality of electric wires. A multi-harness in which the sub-connectors C1 to Cn corresponding to the wire groups L1 to Ln connected to the other end of the electric wire are connected to the parent connector commonly connected to one end of the electric wire, respectively. (For example, refer to Patent Document 1).
According to the technique described in Patent Document 1, a multi-harness composed of a plurality of wire groups with different wire lengths is certainly obtained.
However, in this system, for example, as shown in FIG. 1 of the attached drawing (attached drawing of Patent Document 1), the right child connector carrying rail, and the left parent connector carrying rail arranged at a distance from this, Between these, a carriage mechanism for conveying the electric wire is configured. This is for conveying the electric wire supplied from the electric wire supply part located further to the left than the left rail to the child connector of the right rail, and is a mechanism necessary for the configuration of this prior art. In the description, the horizontal direction is based on the worker position.

Thus, since the carriage mechanism is provided between the left and right rails, the shortest wire length of the harness is generally limited by the width of the carriage mechanism, and a wire that is narrower (shorter) than this width is incorporated into the harness. However, this pressure welding device could not.
Moreover, according to this prior art, after the electric wire is collectively pressure-welded to the child connector of the right rail. For the left parent connector, the wire is pressure-welded by repeating the length measurement, cutting, and pressure welding sequentially for each of the wire groups L1 to Ln having different wire lengths. In this way, it is difficult to shorten the work time because the repetition process is included in the cycle.

JP 2000-223236 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a multi-harness pressure welding apparatus capable of pressure welding and cutting a short electric wire group and shortening the work time, and a pressure welding method thereof.

In order to solve the above-described problems, the pressure welding method of the present invention includes (1) a plurality of sub connectors for each of the wire groups L1. C1... Cn is a multi-harness press-contact method for forming a multi-harness in which a plurality of sub-connectors C1... Cn are held by a connector guide, and the sub-connectors C1. A child-side pressure welding process in which one end of the electric wire is pressure-contacted collectively, a child connector C1... Cn to which the wire is pressure-welded is opened to the outside from the connector guide portion, and the plurality of opened child connectors C1.・ Each of the wire groups L1... Ln that are press-contacted to each of Cn from the wire group L1 located on one side in the width direction of the plurality of wires arranged in parallel to the wire group Ln located on the other side Wire measuring process for measuring the length of each wire, the parent connector Cp is held by the connector guide, and the wire groups L1... Ln arranged in the width direction are moved from the wire group L1 located on one side to the other side. This includes a parent-side press-contacting step of sequentially pressing and cutting the parent connector Cp up to the group Ln.

The multi-harness pressure welding method of the present invention is to sequentially measure the length of the wires included in all the wire groups and then press and cut the wires sequentially to the parent connector. Thereby, since the loop process in which the length measurement, the pressure welding, and the cutting are repeatedly performed for each electric wire is not included, the cycle time of the machine is advanced.
In addition, the child connector is released from the child-side connector guide part after the wire pressure welding, and is not restrained and hangs down by its own weight. In addition to the mechanism of the present invention, there is no special structure that regulates the length of the wire, and it is only necessary to provide a space that avoids interference between the portion that guides the wire and the portion that presses the wire. A multi-harness including a long wire group is obtained.

  More preferably, the multi-harness pressure welding method of the present invention includes (2) an air blowing step in which air is blown downward from above toward the electric wire during or after the electric wire length measurement in the electric wire length measuring step. It is what is described in the feature (1).

  Since the multi-harness pressure welding method of the present invention includes an air blowing process in which air is blown downward from above toward the electric wire, the child connector released after the pressure welding surely hangs downward. Thereby, the multi-harness provided with the short electric wire group to the long electric wire group is obtained, without malfunctions, such as an electric wire floating and entangled electric wires.

  In order to solve the above-described problems, the multi-harness pressure welding device of the present invention is (3) for each of the wire groups L1. A multi-harness pressure welding device in which a plurality of child connectors C1... Cn are pressure-welded, a child-side connector guide portion for holding the plurality of child connectors C1. Parent-side connector guide part, electric wire guide part for conveying a plurality of electric wires supplied from the electric wire supply part, electric wire length measuring part for measuring a plurality of electric wires supplied from the electric wire supply part, a plurality of electric parts fed from the electric wire supply part There are a child-side press punch that presses the wire against the plurality of child connectors C1... Cn, and a parent-side press punch that presses the plurality of wires sent from the wire length measuring unit against the parent connector Cp. The slave connector guide portion includes means for holding and releasing the slave connectors C1... Cn, and holding the supplied plurality of slave connectors C1. ... After the electric wires are collectively welded to the Cn by the slave-side pressure punch, the slave connectors C1 ... Cn are opened, and the electrical wires with the slave connectors C1 ... Cn are press-contacted to one end of the wires are measured. In this section, the length is measured for each of the electric wire groups L1... Ln, and after the length measurement of the electric wire is completed, it is cut and pressed by the master pressure welding punch.

The multi-harness pressure welding apparatus according to the present invention measures and lengthens all the wires included in the wire group, and sequentially presses and cuts the wires to the parent connector. Thereby, since a process is assembled in order of a length measurement process and a press-contact process, the cycle time of a press-contact apparatus becomes early.
In addition, the child connector is released from the child-side connector guide part after the wire pressure welding, and is not restrained and hangs down by its own weight. There is no special structure that regulates the length of the wire other than the mechanism, and it is only necessary to provide an interval that avoids interference between the portion that guides the wire and the portion that presses the wire. A multi-harness including groups is obtained.

  More preferably, the multi-harness pressure welding device according to the present invention is (4) an air from above to below between the child-side connector pressure-contact portion and the parent-side connector pressure-contact portion of the multi-harness pressure welding device according to (3). Is provided with an air blow part, and the opened child connectors C1... Cn receive the air and hang downward.

  The multi-harness pressure welding apparatus according to the present invention includes an air blowing portion that blows air downward from above toward the electric wire, so that the opened child connector hangs down reliably. Thereby, the multi-harness including a short electric wire group to a long electric wire group is obtained, without an electric wire being entangled.

  More preferably, in the multi-harness pressure welding apparatus according to the present invention, (5) the wire guide portion is movable along the wire supply direction, the forward end is moved to the child connector guide portion, and the backward end is (3) or (4) is characterized in that the wire is supplied to the child connectors C1... Cn and the parent connector Cp by moving to the parent connector guide portion.

  The multi-harness pressure welding apparatus according to the present invention is a system in which the wire guide part performs the wire passing between the child connectors C1... Cn and the parent connector Cp, and the retracted position of the wire guide part is the parent side connector. It is on the side of the electric wire supply part from the guide part. Thereby, the multi harness containing a short electric wire group is obtained.

It is a block diagram of the press-contact apparatus of the multi harness which concerns on embodiment of this invention. It is the front view which expanded the press-contact part periphery of FIG. It is the side view to which the sub connector connector part of FIG. 1 and the press-contact part were expanded. FIG. 2 is an enlarged side view of a parent connector guide portion and a pressure contact portion in FIG. 1. It is a schematic diagram which shows the initial position of the press-contact apparatus of the multi-harness which concerns on embodiment of this invention. It is a schematic diagram which shows the flow of the connector in the press-contact apparatus of the same multi-harness. It is a schematic diagram of the periphery of the child side pressure contact part in the pressure welding apparatus of the multi-harness. It is a schematic diagram of the periphery of the master-side pressure contact portion in the multi-harness pressure welding device. It is a schematic diagram which shows the 1st process in the press-contact apparatus of the same multi-harness. It is a schematic diagram which shows the 2nd process in the press-contact apparatus of the same multi-harness. It is a schematic diagram which shows the 3rd process in the press-contact apparatus of the same multi-harness. It is a top view in FIG. It is a schematic diagram which shows the 4th process in the press apparatus of the multi-harness which concerns on embodiment of this invention. It is a schematic diagram which shows the 5th process in the press-contact apparatus of the same multi-harness. It is a schematic diagram which shows the 6th process in the press-contact apparatus of the same multi-harness. It is a top view in FIG. It is a schematic diagram which shows the 7th process in the press-contact apparatus of the multi-harness which concerns on embodiment of this invention. It is a schematic diagram which shows the 8th process in the press-contact apparatus of the same multi-harness. It is a top view in FIG. It is a schematic diagram which shows the 9th process in the press-contact apparatus of the multi-harness which concerns on embodiment of this invention. It is a top view in FIG. It is a schematic diagram which shows the 10th process in the press-contact apparatus of the multi-harness which concerns on embodiment of this invention. It is a top view in FIG. It is a manufacturing-process figure in the press-contact apparatus of the multi-harness which concerns on embodiment of this invention. It is the external view which showed the multi harness assembled with the press-contact apparatus of the multi harness.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[Functional description of the entire device]
The multi-harness M pressure welding method and the pressure welding apparatus 1 according to the present invention include a plurality of child connectors for each of the wire groups L1... L3 in which the parent connector Cp is pressure-welded to one end of the plurality of wires W and the other ends have different wire lengths. A multi-harness M in which C1 to C3 are press-contacted is formed.

  The multi-harness M press-contact method of the present invention is a method in which a plurality of sub-connectors C1... C3 are held by a sub-connector guide portion 30 and one end of an electric wire W is press-contacted to the sub-connectors C1. A side press-contacting step, an opening step of opening the child connectors C1... C3 to which the electric wires W are press-contacted outward from the child-side connector guide portion 30, and press-contacting each of the opened plurality of child connectors C1. Each of the electric wire groups L1... L3 is measured for each electric wire W from the electric wire group L1 located on one side in the width direction of the plural electric wires W arranged in parallel to the electric wire group L3 located on the other side. Wire measuring step, the parent connector Cp is held by the parent connector guide portion 70, and the wire groups L1... L3 arranged in the width direction are changed from the wire group L1 located on one side to the wire group L3 located on the other side. In turn, it is intended to include press parent connector Cp, parent-side press-contacting step of cutting, the.

Furthermore, an air blow process is provided in which air is blown from the air blow section 90 toward the electric wire W from the upper side to the lower side at the time of the electric wire length measurement in the electric wire length measurement step or immediately thereafter.
Further, an air blow unit 90 for blowing air from above to below is provided between the child side pressure contact portion 40 and the parent side pressure contact portion 80 of the pressure welding device 1 of the multi-harness M, and the opened child connectors C1. -It has a feature where C3 hangs downward.
Further, the electric wire guide part 130 is movable along the electric wire supply direction, the advance end moves to the child side connector guide part 30, and the retreat end moves to the parent side connector guide part 70. In this case, the electric wire W is supplied to the sub connectors C1... C3 and the main connector Cp.

[Entire device configuration]
FIG. 1 shows a pressure welding apparatus 1 to which the method for pressure welding of the multi-harness M of the present invention is applied. The pressure welding apparatus 1 of the multi-harness M of the present invention includes a plurality of electric wires as shown in FIG. A parent connector Cp is press-contacted to one end of W, and a plurality of child connectors C1... C3 are press-contacted to the other end of each of the wire groups L1.

  The pressure welding device 1 of the multi-harness M is broadly divided into a child side connector supply unit that supplies and conveys the child connectors C1... C3 from the parts feeder onto the conveyance rail 21, a child side connector conveyance unit, and the conveyed child. In order to press-connect the connectors C1... C3 to the electric wires W, the child connector C1... C3 that holds the child connectors C1. A child-side press contact portion 40 that presses the electric wire W is provided. The parent connector Cp is also provided with the same function (parent side connector supply part, parent side connector transport part, parent side connector guide part 70, parent side pressure contact part 80).

Moreover, the pressure welding apparatus 1 of the multi-harness M is provided with an electric wire accommodating portion (not shown) for accommodating the electric wire W in a mode in which the electric wire W is wound around the electric wire take-up stand. In addition, the electric wire W is measured to a predetermined length. An electric wire length measuring section 120, and an electric wire guide section 130 for passing the electric wires W to the sub-connectors C1... C3 and the main connector Cp.
Furthermore, the press-contacting device 1 of the multi-harness M includes an air blow unit 90 for hanging down when the electric wire W having the child connectors C1. A discharge unit 100 for discharging the harness M is provided.

  The child-side connector guide portion 30 includes means for holding and releasing the child connectors C1 to C3, and holds the supplied plurality of child connectors C1 to C3. After W is collectively pressed by the slave side press punch 42, the slave connectors C1... C3 are opened, and the wire W having the slave connectors C1. It is characterized in that the length is measured for each of the electric wire groups L1.

[Individual configuration] [Sub-connector supply section]
Different types of child connectors C1... C3 are respectively housed in a plurality of parts feeders, and transferred from these parts feeders to the transport rail 21 in the arrangement order. The parts feeder is located behind the pressure welding apparatus 1, and the child side pressure welding part 40 is located in front of the parts feeder.
In addition, unless otherwise defined in the description, the indicated direction in the description is based on the position of the worker facing the pressure welding device 1, with the right hand side facing the worker on the right, the opposite side on the left, the other front back, the upper side The same applies to the lower part.

[Slave connector transport section]
The child connectors C1... C3 are transported to the front child-side pressure contact portion 40 on the transport rail 21. The conveyance driving force is by air blow from the rear. The conveyance rail 21 is a processed product of a metal plate material in which grooves are formed.

[Slave connector guide]
As shown in FIG. 3, the sub-connector guide portion 30 holds the plurality of sub-connectors C <b> 1 to C <b> 3 that have been transported on the transport rail 21 so as not to move, and is the same as the transport rail 21. A receiving portion 32 is provided at a height. The sub-connector guide part 30 holds the sub-connectors C1 to C3 so that the wire pressure contact side is on the top. The child side connector guide part 30 is provided with the connector cover 31 and the brake 35, and hold | maintains child connector C1 ... C3 by these cooperation. The connector cover 31 includes a receiving portion 32, and the receiving portion 32 includes a receiving surface 33 at the same height as the surface of the transport rail 21.

  A plate-like rectangular brake 35 that can move in the vertical direction is provided on the side surface of the receiving portion 32. The brake 35 is connected to the support base that supports the connector cover 31 by the coil spring 36, and is always in a state where pressure is applied to the side surface of the connector cover 31. The brake 35 hits the side surface of the receiving portion 32 on the front surface of the main body so as to come into contact with the side wall portion of the receiving portion 32. The receiving portion 32 protrudes upward from the receiving surface 33 in the pressed state. The sub-connectors C1... C3 are accommodated in the grooves having a U-shaped cross section.

The receiving portion of the connector cover 31 has an open upper surface. The child-side pressure punch 42 moves up and down through the opening. The bottom of the connector cover 31 is connected to the connector cover up / down drive cylinder 39 and is movable in the up / down direction. The connector cover 31 stands by at the lowest position until the child connectors C1... C3 that have been conveyed are received, the electric wires W are set, and the pressure contact is performed.
When the connector cover 31 is raised by the drive of the connector cover vertical drive cylinder 39, the brake 35 does not move from its original position. That is, as the connector cover 31 rises, the brake 35 relatively moves downward, and the tip of the brake 35 becomes lower than the receiving surface 33 when the connector cover 31 is lowered. As a result, in the receiving portion 32 that holds the child connectors C1 to C3, an open portion appears on the side surface in addition to the upper surface. With this series of operations, preparations for opening the child connectors C1... C3 from the child-side connector guide portion 30 are made.

[Slave side pressure contact area pressure punch]
As shown in FIG. 3, the child-side pressure contact portion 40 includes a child-side pressure punch die 41 that can move in the vertical direction and a child-side pressure punch 42 that is assembled to the child-side pressure punch die 41. The child-side pressure contact punch 42 has a comb-teeth shape in which a plurality of punches are gathered in a line. The comb teeth are formed at equal intervals according to the pitch of the child connectors C1... C3. The child-side pressure punch 42 can press-contact the wires W in a single operation with a plurality of child connectors C1... C3 in which the plurality of wires W are set upward.

[Parent connector supply section]
The parent connector Cp is housed in the parts feeder and transferred to the transport rail 61 in the order of arrangement. The parts feeder is located behind the pressure welding apparatus 1, and the parent side pressure welding part 80 is located in front of the parts feeder.

[Parent connector transport section]
The parent connector Cp is transported to the front parent-side pressure contact portion 80 on the transport rail 61. The conveyance driving force is by air blow from the rear. The conveyance rail 61 is a processed product of a metal plate material in which grooves are formed.

[Parent connector guide]
As shown in FIG. 4, the parent-side connector guide portion 70 holds the plurality of parent connectors Cp that have been transported on the transport rail 61 so as not to move, and is received at the same height as the transport rail 61. A portion 72 is provided. The parent-side connector guide part 70 holds the parent connector Cp so that the wire pressure contact side is on the upper side. The parent-side connector guide part 70 includes a connector cover 71 and a brake 75, and holds the parent connector Cp by their cooperation. The connector cover 71 includes a receiving portion 72, and the receiving portion 72 includes a receiving surface 73 at the same height as the surface of the transport rail 61.

  A plate-like brake 75 that is movable in the vertical direction is provided on the side surface of the receiving portion 72. The brake 75 is connected to the support base that supports the connector cover 71 by a coil spring 76, and is always in a state where pressure is applied to the side surface of the connector cover 71. The brake 75 hits the side surface of the receiving portion 72 on the front surface of the main body so as to hit the side wall portion of the receiving portion 72. The receiving portion 72 protrudes upward from the receiving surface 73 in the pressed state. The parent connector Cp is accommodated in the groove portion having a U-shaped cross section. An upper surface of the receiving portion 72 of the connector cover 71 is open. The master side pressure punch 82 moves up and down through the opening.

[Parent pressure welding part pressure welding punch]
As shown in FIG. 4, the parent side pressure contact portion 80 includes a parent side pressure punch die 81 and a parent side pressure punch 82 assembled to the parent side pressure punch die 81. The master side pressure punch 82 is composed of only one punch. The master-side press punch 82 presses the wires W one by one from the terminal on one side end to the other end in order to the plurality of parent connectors Cp on which the plurality of wires W are set upward. Go.

  The master-side pressure punch die 81 is connected to a pressure-punch moving servo motor 89 and is movable along the guide groove of the master-side connector guide portion 70. A plurality of parent connectors Cp are held in the guide groove, and the electric wires W are pressed against the terminals one by one while being shifted by one pitch. At this time, so-called pitch conversion is performed.

(Wire measuring section Measuring roller)
As shown in FIG. 1, the wire length measuring unit 120 measures the length of the wire with a length measuring roller 121 and pushes out the wire W to a necessary length. The length measuring roller 121 includes a pair of upper and lower rollers 121a and 121b. The length measuring roller 121 is connected to an electric wire length measuring servo motor 128 and can be controlled with high accuracy. The wire length is measured by the rotation angle of the length measuring roller 121. The length measuring roller 121 is provided for the number of the electric wires W. The length measuring roller 121 is connected to a wire length measuring servo motor by a belt, and the rotation of the upper and lower rollers 121a and 121b is synchronized. The upper roller 121a is connected to the wire length measuring roller upper and lower cylinders 129 and is movable in the vertical direction.
The measurement of the electric wires W is started simultaneously for all the electric wires W up to the electric wire groups L1... L3. The length measurement is sequentially completed from the wire group L1 having the shortest wire length. The upper roller 121a is separated from the electric wire W of the electric wire group L1 for which the length measurement has been completed. At this time, the upper roller 121a is located above the electric wire W. Thus, when the upper roller 121a rises sequentially from the wire group L1 having a short wire length and the measurement of the last wire group L3 having the longest wire length is completed, all the upper rollers 121a are retracted upward. .

(Wire guide part)
As shown in FIG. 1 and FIG. 2, the wire guide portion 130 aligns a plurality of wires W on a plane and holds them so as not to move, while holding the child side pressure contact portion 40 and the parent side pressure contact portion 80. Between the parent connector Cp and the sub-connectors C1... C3. The wire guide part 130 includes a bottom plate and a lid. A groove for guiding the plurality of electric wires W is carved on the bottom board. The groove interval is wide at the rear (wire entry side), and becomes narrower toward the front (wire exit side), and the pitch of the front end becomes equal to the terminal pitch of the child connector. This groove is slightly larger than the diameter of the electric wire W, and the electric wire W can move smoothly in this groove. The bottom plate is covered with a lid so that the electric wires W are not scattered.

The electric wire guide part 130 includes a chuck part 133. The chuck portion 133 chucks and holds the electric wire W, and the chuck portion 133 is driven by the electric wire chuck air cylinder 139. The electric wire guide part 130 includes a cutting blade 134 on the bottom plate. The cutting blade 134 cuts the electric wire W at a predetermined position in cooperation with the child-side pressing punch 42 or the parent-side pressing punch 82.
The wire length measuring unit 120 and the wire guide unit 130 are on one board surface, and the board surface is advanced and retracted in the left-right direction (wire supply direction) by a servo motor 138 for moving the wire unit.

[Air blow part]
As shown in FIGS. 1 and 2, the air blow unit 90 is positioned above the sub connector connector 30 and the main connector guide 70. The air blow part 90 is for blowing air to the electric wire W with which the connector C1 ... C3 was press-contacted to the end, and to make sure the opened child connector C1 ... C3 hangs down reliably. The air blow unit 90 is connected to the air blow upper / lower cylinder 99 and is movable in the vertical direction.

[Connector discharge section]
As shown in FIG. 1, the connector discharge portion 110 is a worker side portion of the parent-side connector transport rail 61. In the multi-harness M in which the parent connector Cp and the child connectors C1... C3 are press-contacted to the electric wires W, the plurality of child connectors C1. Cp is guided by the transport rail 61 and moves.

[Functional explanation explained in the order of steps]
So far, the configuration of the pressure welding device 1 of the multi-harness M has been described. Thereafter, how the configuration works and the connectors Cp, C1, C2, and C3 are pressed against the electric wire W is divided into steps 1 to 10 as shown in FIG. I will explain to you.

[Step 1]
Step 1 is a step in which the wire guide portion 130 moves to the child-side pressure contact portion 40 as shown in FIG.
The electric wire W is held by the chuck portion 133 of the electric wire guide portion 130 and is sent to the child-side pressure contact portion 40 in a lump. When the wire guide part 130 moves to the child-side pressure contact part 40, the wire W is sent out by the delivery roller (wire measurement roller 121) for the pressure contact allowance (several millimeters to 10 millimeters). This fed-out electric wire W is positioned above the terminals assembled in the sub-connectors C1... C3 and is in a state of waiting for pressure contact.
The sending out of the wire W for the pressure contact allowance is simultaneously performed on the plurality of wires W of all the wire groups L1 to L3. Since one feed roller (length measuring roller 121) is provided for one wire W, all wires W can be sent simultaneously. This speeds up the wire length measurement process.

[Step 2]
Step 2 is a step of press-contacting the electric wire W to the terminals of the sub-connectors C1... C3 as shown in FIG.
If the electric wire W is arrange | positioned above the terminal assembled | attached to the subconnector C1 ... C3 at the process 1, the electric wire W is a press-contact ready state. The child-side press punch 42 starts to descend from above the electric wire W in this state, and presses the electric wire W to the terminal. When the child-side pressure contact punch 42 reaches the lowest point and reverses and rises, the pressure contact is completed, and the electric wire W is connected to the child connectors C1 to C3.
The child-side pressure contact punch 42 has a comb-like shape and is provided with punches corresponding to the total number of wires included in all the wire groups L1 to L3. Accordingly, the press-contact of all the wires W to the sub-connectors C1. By such collective processing, the child-side pressure contact process is speeded up.

[Step 3]
Step 3 is a step in which the wire guide portion 130 is retracted to a midway position, as shown in FIGS. 11 and 12.
The electric wire guide part 130 moves backward with the chuck part 133 that clamps the electric wire W opened. The retreat position is an intermediate position between the child-side press contact portion 40 and the parent-side press contact portion 80 in the middle of the retreat path. During this time, the child connectors C1 to C3 are held by the child-side connector guide portion 30. Thereby, the electric wire W press-contacted to the child connectors C1... C3 is in a state of being suspended in the air by the distance that the electric wire guide portion 130 is retracted.

[Step 4]
Step 4 is a step in which the connector cover 31 is raised and the brake 35 that has guided the child connectors C1 to C3 on the side surface of the receiving portion 32 is relatively lowered, as shown in FIG.
The child connectors C1... C3, whose side guides are unwound, are in a state of being able to move rearward together with the movement of the electric wire W by moving the pressed electric wire W to the rear (left side in FIG. 13). By the upward movement of the sub connector guide part 30, the position level of the electric wire W and the position level of the sub connectors C1... C3 become equal on the horizontal plane.

[Step 5]
Step 5 is a step in which the wire guide portion 130 moves backward to a position further rearward (left side of the paper in FIG. 14) than the position of Step 3 as shown in FIG. However, this position is also an intermediate position on the way back. The wire guide portion 130 moves backward while operating the clamp of the wire chuck portion 133, that is, while holding the wire W. Accordingly, all the child connectors C1... C3 that have been in the backward preparation state in Step 4 are released from the child-side connector guide portion 30 at this time. The opened child connectors C1... C3 hang down due to the weights of the child connectors C1.

[Step 6]
Step 6 is a step in which the wire guide portion 130 moves backward with the wire W held to the position of the master-side pressure contact portion 80 as shown in FIGS. 15 and 16.
With the parent-side pressure contact punch 82 waiting on the upper side, the corresponding cutting blade 134 incorporated in the wire guide portion 130 is on the lower side. At this time, the electric wire W has not been measured yet.

[Step 7]
Step 7 is a step in which the air blow unit 90, which has been waiting at the upper level, moves to the lower level, as shown in FIG.
The air nozzle of the air blowing unit 90 is directed downward and blows air downward. The air blow part 90 descends to near the upper part of the child connectors C1 to C3 connected to the electric wire W. In this way, the sub-connectors C1... C3 are contained in the air blowing area of the air blowing unit 90. As a result, the child connectors C1... C3 hang down reliably.

[Step 8]
Step 8 is a step of measuring the length of the wire W press-contacted to the child connectors C1... C3 as shown in FIGS. The upper roller 121a comes into contact with the electric wire W. At this time, the electric wire W is clamped by the pair of upper and lower rollers 121a and 121b together with the lower roller 121b waiting at the bottom. The length measuring roller 121 is provided for the number of the electric wires W. The length measuring roller 121 is driven by a belt by a wire length measuring servo motor 128.

The required wire length is measured by the rotation amount of the length measuring roller 121. The electric wire W is sent out simultaneously with the measurement. The length measurement is performed for each electric wire W in units of the electric wire groups L1... L3. At this time, some wires W are connected to the child connectors C1... C3 before the length measurement, but the necessary wire length is sent out in consideration of this amount.
According to the embodiment of the present invention, the shortest wire length is when the child connectors C1... C3 are positioned so as to contact the front end of the wire guide portion 130, as shown in FIG. Although this distance depends on the shape of the wire guide portion 130, the shortest wire length can be designed to be about 30 mm by taking such a basic configuration.

  Air is blown from the air blow unit 90 while the electric wire measuring roller 121 measures and sends the electric wire W. The child connectors C1... C3 connected to the ends of the electric wires W are naturally suspended by their own weights, but some of them may be lifted by an inadvertent action and entangled with the adjacent electric wires. is there. Therefore, air is blown in order to make the sagging more reliable. Thereby, the entanglement of the electric wires due to the floating of the electric wires W is prevented, and the smooth continuous operation of the pressure welding apparatus is made more reliable.

[Step 9]
Step 9 is a step of measuring the lengths of the electric wires having different lengths as shown in FIGS.
An electric wire group L1... L3 is defined for each of the child connectors C1... C3, and the electric wire length is measured for each electric wire W in units of the electric wire groups L1. The length measurement is started for all the wire groups L1... L3 at the same time, and the length measurement is sequentially completed in the order of the short wire group L1 to the long wire group L3.

[Step 10]
Step 10 is a step of press-contacting the measured electric wire W to the parent connector Cp as shown in FIG.
The pressure welding is an individual method that is sequentially performed for each electric wire W from one side end to the other side end of the electric wires W arranged in the lateral direction. At this time, the electric wire W guided by the electric wire guide part 130 is in a state where the clamp of the electric wire chuck part 133 is open. The parent-side press punch 82 waiting on the upper side descends to the press-contact position, and presses the electric wires W that are sequentially measured from one end to the other end to the terminal of the parent connector Cp.

The parent connector Cp is held by the receiving portion 72 of the connector cover 71 of the parent-side connector guide portion 70. The electric wire W is held by the electric wire guide portion 130, and the electric wire guide portion 130 does not move during the pressure contact. The electric wire guide part 130 is holding the electric wire W according to the pitch of child connector C1 ... C3.
When the pitches of the parent connector Cp and the child connectors C1... C3 are different, the parent-side connector guide portion 70 moves in the horizontal direction for each terminal pressure contact including the amount for correcting the pitch difference between the two. The parent-side pressure punch 82 is a method in which one terminal is pressed and moved in the horizontal direction by the wire pitch of the wire guide portion 130 for each pressure contact.

That is, between the electric wires W fixed by the electric wire guide portion 130, the parent side pressure punch 82 moves laterally by one pitch at the upper side, and at the lower side, the parent side connector guide portion 70 has the child connector C 1. It moves in the horizontal direction for each terminal pressure contact including the amount for correcting the pitch difference between C3 and the parent connector Cp.
When all the electric wires W included in all the electric wire groups L1... L3 are press-contacted to the parent connector Cp, a multi-harness M composed of electric wire groups L1. It is done.
The parent-side connector guide portion 70 can accommodate a plurality of parent connectors Cp depending on the size, and can complete a plurality of multi-harnesses M at the same time.

(Action, effect)
As described above, the multi-harness press-welding device that has completed one cycle from step 1 to step 10 is returned to the initial state again, and the above steps are repeated, so that multi-harness can be continuously formed by automatic operation.
According to the multi-harness pressure welding device of the present invention, when the pitch of the child connector is different from the pitch of the parent connector, the parent-side pressure welding punch and the parent-side connector guide portion take into account the pitch difference during the parent-side connector pressure welding. By moving, the pitch deviation is corrected. With this method, it is not necessary to provide a template for pitch conversion, and it is not necessary to create a template or to change the mold. Since the pitch correction is set by key input from the operation panel, the work for changing the mold is reduced.

According to the multi-harness pressure welding apparatus of the present invention, since the pressure welding of the child connector can be simultaneously performed on a plurality of child connectors held by the child side connector guide portion, the working time of the pressure welding process is shortened. be able to.
According to the multi-harness pressure welding apparatus of the present invention, the wire length measurement can be started at the same time because the wire length measurement roller is provided on all the wires when the parent connector is pressure contacted. Thereby, the work time of an electric wire length measurement process can be advanced.

According to the multi-harness pressure welding apparatus of the present invention, the electric wire guide portion spans the electric wire between the child-side pressure welding portion and the parent-side pressure welding portion, and the child connector is released from the child-side connector guide portion during the parent connector pressure welding. Therefore, it is possible to form a multi-harness including a wire group with a short wire length.
According to the multi-harness pressure welding apparatus of the present invention, after the pressure welding of the child connector is finished, the child connector is released from the child-side connector guide portion, and air is supplied from the air blow portion positioned above the opened child connector. Is blown. Thereby, the child connector with which the electric wire is press-contacted hangs down reliably, and the trouble due to the entanglement of the electric wires is prevented.

According to the multi-harness pressure welding apparatus of the present invention, the length measuring roller is driven by a single motor that rotates the length measuring rollers for all the wires via the belt. As a result, a pressure welding apparatus capable of performing compact electric wire length measurement with high accuracy can be obtained.
According to the multi-harness pressure welding apparatus of the present invention, the wire length measuring method is such that a plurality of length measuring rollers for all the wires are brought into contact with the wire and simultaneously rotated to start the length measurement, and the short wire whose length measurement has been completed. The length measurement roller is sequentially removed from the group, and the length measurement continues until the last longest wire group. Since all the wires are thus measured all at once, the time for one cycle is shortened.
According to the multi-harness press-contacting device of the present invention, the multi-harness to which the connector is press-contacted is discharged to the operator side before the press-contacting device. As a result, it is easy to check the pressure contact state, and early detection and early response to an abnormal state are possible.

[Other Embodiments]
Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the inventive idea.

DESCRIPTION OF SYMBOLS 1 Pressure welding apparatus 21 Conveying rail 30 Child side connector guide part 31 Connector cover 32 Receiving part 33 Receiving surface 35 Brake 36 Coil spring 38 Connector moving servo motor 39 Connector cover vertical drive cylinder 40 Child side pressure welding part 41 Child side pressure punching die 42 Child Side pressure punch 48 Servo motor for child side pressure punch 61 Conveying rail 70 Parent side connector guide part 71 Connector cover 72 Receiving part 73 Receiving surface 75 Brake 76 Coil spring 78 Servo motor for connector movement 80 Parent side pressure contacting punch die 81 82 Master side pressure punch 88 Servo motor for master side pressure punch 89 Servo motor for pressure punch movement 90 Air blow part 99 Air blow upper and lower cylinder 100 Discharge part 120 Wire length measurement part 121 Wire length measurement roller 121a Roller 121b Lower roller 128 Wire length measuring servo motor 129 Wire length measuring roller upper and lower cylinder 130 Wire guide portion 133 Chuck portion 134 Cutting blade 138 Wire unit moving servo motor 139 Wire chuck air cylinder C1... Cn Child connector Cp Parent Connector W Electric wire L1 ... Ln Electric wire group M Multi harness

Claims (5)

The parent connector Cp is press-contacted to one end of the plurality of wires,
A multi-harness pressure welding method for forming a multi-harness in which a plurality of child connectors C1... Cn are pressure-welded for each of the wire groups L1.
A plurality of child connectors C1... Cn are held by the connector guide portion, and a child-side pressure welding step of collectively pressing one end of the electric wire to the child connectors C1.
An opening process of opening the child connectors C1... Cn to which the electric wires are press-contacted from the connector guide portion;
Each of the wire groups L1... Ln press-contacted to each of the plurality of opened child connectors C1... Cn is separated from the wire group L1 located on one side in the width direction of the plurality of wires arranged in parallel. Wire length measuring process for measuring the length of each wire until reaching the wire group Ln located in
The parent connector Cp is held by the connector guide, and the wire groups L1... Ln arranged in the width direction are sequentially pressed against the parent connector Cp from the wire group L1 located on one side to the wire group Ln located on the other side. A multi-harness pressure welding method including a parent-side pressure welding process of cutting.   2. The multi-harness pressure welding method according to claim 1, further comprising an air blowing step in which air is blown from the upper side to the lower side toward the electric wire at the time of measuring the electric wire in the electric wire length measuring step or immediately thereafter. The parent connector Cp is press-contacted to one end of the plurality of wires,
A multi-harness pressure welding device in which a plurality of child connectors C1... Cn are pressure-welded for each of the wire groups L1.
A plurality of child connector C1...
A parent-side connector guide for holding the parent connector Cp;
An electric wire guide for conveying a plurality of electric wires supplied from an electric wire supply unit;
A wire length measurement unit for measuring a plurality of wires supplied from the wire supply unit;
A parent-side press punch that presses a plurality of wires sent out from the wire supply unit against the plurality of sub connectors C1... Cn, and a parent that presses a plurality of wires sent out from the wire length measuring unit against the parent connector Cp. A pressure-contact portion having a side pressure-contact punch,
With
The child-side connector guide portion includes holding and opening means for holding the child connectors C1... Cn, holds the supplied plurality of child connectors C1. After being collectively pressed by the child side pressure punch, the child connectors C1... Cn are opened,
The wires whose child connectors C1... Cn are pressure-welded to one end are sequentially measured for each wire group L1.
A multi-harness pressure welding apparatus characterized by cutting and pressure welding with the parent pressure welding punch after completion of length measurement of the electric wire.   An air blower for blowing air from above to below is provided between the child connector pressure contact portion of the multi-harness pressure welding device according to claim 3 and the parent connector pressure contact portion, and the opened child connector is the air connector. Multi-harness press-contacting device characterized in that it hangs downward upon receiving.   The wire guide portion is movable along the wire supply direction, the forward end is moved to the child side connector guide portion, and the backward end is moved to the parent side connector guide portion. The multi-harness pressure welding device according to claim 3 or 4, characterized in that C1... Cn are supplied to the parent connector Cp.

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